The charger shall give an alarm signal upon failure initiated by either an under-voltage relay or a zero charging current relay.
充电器应发出警报信号后没有任何一方发起一个欠压继电器或零充电电流继电器。
In the case of ideal operational amplifier, circuit analysis was simplified by the ideal summing point restraints of zero voltage and zero current at the inverting input.
对于理想的运算放大器而言，通过倒相输入处零电压和零电流的理想求和点限制，可以简化电路分析过程。
If the instrument is being used to measure a small voltage drop resulting from the flow of current through a resistor, the following procedure will result in a proper zero.
如果用仪器来测量电流流过一个电阻器所产生的小电压降，那么采用下述的方法可以得到合适的零点。
All switches are turned off with zero voltage switching, and the two switches of them are turned on with zero current and zero voltage switching.
该变换器中的开关管实现了在零电压下关断，而且其中两个开关管在零电流零电压下开通。
The equipment ensures automatic closing at current zero, preset test voltage automatically and the effect is fine.
设备自动保证过电流零点合闸，自动预置试验电压，试验效果好。
With voltage measurements, the input current is ideally zero; thus, any input current represents an error.
对电压测量来说，理想的输入电流应为零，所以，一切输入电流都代表误差。
This paper presents a novel zero voltage and zero current switching (ZCS) PWM push pull three level converter in which the voltage stress of switches is input voltage.
本文提出了一种新型的零电压零电流开关pwm推挽三电平直流变换器，其中开关管的电压应力为输入电压。
The system can automatically determine the sample breakdown and collect the breakdown voltage data and leakage current, and can quickly reduce the automatic return to zero at the same time.
系统能够自动判别试样击穿并采集击穿电压数据及泄露电流，同时能够在击穿的瞬间电压迅速降低自动归零。
Ways to improve the reliability of arc welding inverter power and the research condition of zero voltage, zero current soft switch inverter are introduced.
介绍提高我国弧焊逆变电源可靠性的途径以及零电压、零电流软开关变换研究现状。
By using an active clamp circuit, the power transformer core is symmetrically reset. Zero voltage switching conditions are achieved over a broad input voltage and output current range.
利用有源钳位电路实现主变压器铁心对称复位，功率开关在宽输入电压和宽负载电流范围内零电压开关。
Simulation and experimental results show that the proposed converter has sine wave input current and output voltage, low harmonic content, adjustable power factor, and zero voltage commutation.
仿真和实验结果表明：所提出的变换器输入电流和输出电压为正弦，谐波小且输入功率因数可控，并可实现零电压换流。
Using voltage controlled current source(VCCS) to create a zero is a novel scheme for frequency compensation of LDO regulators.
利用小信号压控电流源（VCCS）电路产生所需零点，是一种先进的低压降稳压器（LDO）频率补偿方法。
Nice equivalence of test circuit manifests in the initial part of recovery voltage and the physical process near current zero as well.
试验回路的等价性还表现在电流零点附近的物理过程和恢复电压的初始部分。
The stability of the welding arc depends mainly on the voltage and the gas ionization when current zero-crossing as well as the electron emission ability of the electrode.
其电弧稳定与否，主要取决于电流过零瞬间的电弧空间电离度、 电极发射电子能力及再引燃电压的上升速度。
Over current protection, negative current protection, zero sequence current protection, over time of start protection and low voltage protection is configured in the device.
本装置配有过流保护、负序电流保护、零序电路保护、起动时间过长保护、低电压保护。
At the time of failure, no matter what kind of start state of voltage phase, the zero-sequence transient current has the characteristic of inverse phase.
在故障时刻，无论故障相电压的相位处在何种初始状态下，都有零序电流反向的特征。
An electronics transformer rectifier unit(TRU)with the output of 28.5V/100A DC is developed by using a novel phase shifted zero voltage and zero current switching PWM converter topology.
采用一种新型移相控制零电压零电流开关PWM全桥变换器拓扑，研制成2 8.5V/10 0A的航空电子变压整流器。
When a switch is closed, the voltage across the switch is identically equal zero regardless of the current through the switch.
当它被合上时，不管流经开关元件的电流值是多少，电压恒为零。
The system can automatically distinguish the sample breakdown and breakdown voltage andleakage current data acquisition, and can rapidly reduce auto zero at the moment of the voltage breakdown.
本系统能够自动判别试样击穿并采集击穿电压数据及泄露电流，同时能够在击穿的瞬间电压迅速降低自动归零。
This circuit is simple with minimum components, and has the soft - switching effect which make the only one switch in the circuit is turned on with zero current and turned off at zero voltage.
电路中只使用了一个开关管以及最少的元件，但却获得了开关器件零电流开通和零电压关断的效果。
A novel full bridge (FB)-phase shift (PS)-zero voltage zero current switching (ZVZCS) converter is proposed.
提出了一种新型的全桥移相零电压零电流变换器拓扑结构。
This thesis analyzes the zero-crossing distortion, and points out that the major causes are the inductor and the phase displacement between the input current and the input voltage.
本文对产生输入电流过零畸变的各种原因进行了定量分析，指出电感和输入电流与输入电压间的相位差是影响高频输入下输入电流过零畸变严重的根本原因。
Secondly, the DC voltage loop and inner current closed-loop control method, both to ensure zero static error of the inverter output, but also to ensure that the inverter output waveform.
其次，本文采用直流电压外环、电流内环的双闭环控制方法，既保证了逆变器输出的静态误差为零，又保证了逆变器良好的输出波形。
A current mode zero-voltage and zero-current switching (ZVZCS) inverter TIG welding machine is developed in this paper, which realizes ZVS for the leading leg and ZCS for the lagging leg.
研制了电流模式零电压零电流开关TIG焊机，其超前臂实现了零电压开关，滞后臂实现了零电流开关。
Near the critical point of the RLC-circuit, the residual voltage waveform changes form non-oscillating attenuation mode to distinct across zero oscillating mode when the peak current increases.
在RLC回路临界点附近，随着冲击电流峰值的增大，残压波波尾从非振荡衰减过渡到大幅度的过零振荡；
A novel principle of negative-sequence current compensation based adaptive zero-sequence over-voltage protection is therefore proposed.
该文提出一种新的基于负序电流补偿的自适应零序过电压保护原理。
Putting the three-phase lines and middle line of the electrical circuit through the zero current transformer, the residual current signal will be converted into the voltage signal.
将电气线路的三相线及中线通过零式电流互感器后，零式电流互感器会把剩余电流信号转换为电压信号。
For the parameter optimization. this article also analyzes the core components of achieving zero-voltage turn-on and ultra-forearm arm lag zero current shutdown.
本文还对实现超前臂零电压开通和滞后臂零电流关断的核心元器件进行了参数优化设计。
This paper introduces a novel PWM welding inverter with Zero-Voltage-Switching (ZVS) and Zero-Current-Switching (ZCS) phase shift full bridge.
介绍一种新型的零电压、零电流全桥相移pwm弧焊逆变器。
This paper introduces a novel PWM welding inverter with Zero-Voltage-Switching (ZVS) and Zero-Current-Switching (ZCS) phase shift full bridge.
介绍一种新型的零电压、零电流全桥相移pwm弧焊逆变器。
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